<table border='1'> 
<caption>Example table A</caption> 
<tr>
<th>heading_1</th> 
<th>heading_2</th> 
<th>heading_3</th> 
</tr>
<tr>
<td>value_11</td> 
<td>value_21</td> 
<td>value_31</td> 
</tr>
<tr>
<td>
<table border='1'> 
<caption>Example table B</caption> 
<tr>
<th>Data_1</th> 
<th>Data_2</th> 
<th>Data_3</th> 
<th>Sum</th> 
</tr>
<tr>
<td>1</td> 
<td>2</td> 
<td>3</td> 
<td>6</td> 
</tr>
<tr>
<td>10</td> 
<td>20</td> 
<td>30</td> 
<td>60</td> 
</tr>
<tr>
<td>11</td> 
<td>22</td> 
<td>33</td> 
<td>66</td> 
</tr>
</table> 
</td>
<td>
<table border='1'> 
<caption>Example table B</caption> 
<tr>
<th>Data_1</th> 
<th>Data_2</th> 
<th>Data_3</th> 
<th>Sum</th> 
</tr>
<tr>
<td>1</td> 
<td>2</td> 
<td>3</td> 
<td>6</td> 
</tr>
<tr>
<td>10</td> 
<td>
<table border='1'> 
<caption>Example table B</caption> 
<tr>
<th>Data_1</th> 
<th>Data_2</th> 
<th>Data_3</th> 
<th>Sum</th> 
</tr>
<tr>
<td>1</td> 
<td>2</td> 
<td>3</td> 
<td>6</td> 
</tr>
<tr>
<td>10</td> 
<td>
<table border='1'> 
<caption>Example table B</caption> 
<tr>
<th>Data_1</th> 
<th>Data_2</th> 
<th>Data_3</th> 
<th>Sum</th> 
</tr>
<tr>
<td>1</td> 
<td>2</td> 
<td>3</td> 
<td>6</td> 
</tr>
<tr>
<td>10</td> 
<td>
<table border='1'> 
<caption>Example table B</caption> 
<tr>
<th>Data_1</th> 
<th>Data_2</th> 
<th>Data_3</th> 
<th>Sum</th> 
</tr>
<tr>
<td>1</td> 
<td>2</td> 
<td>3</td> 
<td>6</td> 
</tr>
<tr>
<td>10</td> 
<td>20</td> 
<td>30</td> 
<td>60</td> 
</tr>
<tr>
<td>11</td> 
<td>22</td> 
<td>33</td> 
<td>66</td> 
</tr>
</table> 
</td>
<td>30</td> 
<td>40</td> 
</tr>
<tr>
<td>11</td> 
<td>2</td> 
<td>33</td> 
<td>46</td> 
</tr>
</table> 
</td>
<td>30</td> 
<td>40</td> 
</tr>
<tr>
<td>11</td> 
<td>2</td> 
<td>33</td> 
<td>46</td> 
</tr>
</table> 
</td>
<td>30</td> 
<td>40</td> 
</tr>
<tr>
<td>11</td> 
<td>2</td> 
<td>33</td> 
<td>46</td> 
</tr>
</table> 
</td>
<td>
<table border='1'> 
<caption>Example table B</caption> 
<tr>
<th>Data_1</th> 
<th>Data_2</th> 
<th>Data_3</th> 
<th>Sum</th> 
</tr>
<tr>
<td>1</td> 
<td>2</td> 
<td>3</td> 
<td>6</td> 
</tr>
<tr>
<td>10</td> 
<td>20</td> 
<td>30</td> 
<td>60</td> 
</tr>
<tr>
<td>11</td> 
<td>22</td> 
<td>33</td> 
<td>66</td> 
</tr>
</table> 
</td>
</tr>
</table> 
